Lenovo T14 Gen 4 bios password

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  • JohnnyC74
    New Member
    • Nov 2024
    • 1
    • Hungary

    #1

    Lenovo T14 Gen 4 bios password

    Can anyone help me with the bios password?
    Lenovo T14G4
    System Unit Serial Number PF-4VM3AX
    Machine type model 21HE-S6T900​
  • volinakis
    Badcaps Legend
    • Jan 2021
    • 2877
    • N/A

    #2
    Originally posted by rumpumpel1
    I have attempted to remove the BIOS password from an E14 Gen 3 AMD:
    System Unit Serial Number PF30PWYB
    Machine type model 20YDS03T00
    Based on my experience with Intel machines and assuming that the password is stored in the EC, I made a backup of the EC, erased the EC and restored the backup.
    Unfortunately the password is still there.
    Can someone please tell me the correct way to do this?
    Attached is the backup of the EC.
    your backup is too short, 131Kb. Read it again and chose 256kb and 392Kb in SVOD4 settings
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    Comment

    • rumpumpel1
      Senior Member
      • Jul 2019
      • 165
      • germany

      #3
      Originally posted by volinakis

      your backup is too short, 131Kb. Read it again and chose 256kb and 392Kb in SVOD4 settings
      I see the point, on the chip it says 256. But I was not able to read 256KB with SVOD4. I'll try Vertyanow.

      Comment

      • rumpumpel1
        Senior Member
        • Jul 2019
        • 165
        • germany

        #4
        Originally posted by volinakis

        your backup is too short, 131Kb. Read it again and chose 256kb and 392Kb in SVOD4 settings
        ok, so here comes the complete backup 256kB read with Vertyanov.
        Attached Files

        if you find these attachements useful please consider making a small donation to the site

        Comment

        • shiyab
          Badcaps Legend
          • Sep 2023
          • 1695
          • india

          #5
          Originally posted by rumpumpel1

          ok, so here comes the complete backup 256kB read with Vertyanov.
          hi try
          Attached Files

          if you find these attachements useful please consider making a small donation to the site

          Comment

          • volinakis
            Badcaps Legend
            • Jan 2021
            • 2877
            • N/A

            #6
            Originally posted by rumpumpel1

            ok, so here comes the complete backup 256kB read with Vertyanov.
            pass seems to be as in photo, try fill with 00 and if not work fill with FF
            Attached Files

            if you find these attachements useful please consider making a small donation to the site

            ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
            https://www.badcaps.net/donate/
            ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

            Comment

            • volinakis
              Badcaps Legend
              • Jan 2021
              • 2877
              • N/A

              #7
              Originally posted by rumpumpel1

              ok, so here comes the complete backup 256kB read with Vertyanov.
              here you have a clean EC extracted from update, same version as yours - R1OHT28W - but you have to write DMI with Lenovo Maintenance Utility (LMU)
              Attached Files

              if you find these attachements useful please consider making a small donation to the site

              ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
              https://www.badcaps.net/donate/
              ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

              Comment

              • rumpumpel1
                Senior Member
                • Jul 2019
                • 165
                • germany

                #8
                Sorry for the confusion, but this is the wrong thread. This thread is for the T14 and I have an E14. So I started a new thread and have already been helped.

                Comment

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